Add actions for docker image. #1

	name: Docker Image for Worker

	on:
	push:
	tags:
	- '**'
	jobs:
	docker:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	sparse-checkout: 'worker'
	sparse-checkout-cone-mode: false
	# All files should be moved to the project root.
	- name: Move app files to root
	run: \|
	ls -lah
	shopt -s dotglob
	mv worker/* .
	rm -rf worker
	ls -lah
	-
	name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	-
	name: Login to Docker Hub
	uses: docker/login-action@v3
	with:
	username: am009
	password: ${{ secrets.DOCKERHUB_TOKEN }}
	-
	name: Build and push
	uses: docker/build-push-action@v5
	with:
	context: .
	push: true
	tags: am009/latexdiff-web-worker:latest,am009/latexdiff-web-worker:${{ github.ref_name }}

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